GM Service Manual Online
For 1990-2009 cars only

Description

Module

U1000 Generic Loss of Serial Communications

DTC U1000 and DTC U1255 Class 2 Communication Malfunction

IRC, MSM, ONS, RFA, SDM

U1016 Loss of Serial Communications with the PCM

DTC U1001-U1254 Loss of XXX Communications

EBCM, DDM, DIM, DIC, IPC, IPM, IRC, MSM, ONS, RFA, SDM, VTD

U1040 Loss of Serial Communications with the ABS

DTC U1001-U1254 Loss of XXX Communications

IPC, SDM, DIC

U1064 Loss of Serial Communications with the DIM

DTC U1001-U1254 Loss of XXX Communications

EBCM, CDX, DDM, DIC, IPC, IPM, IRC, MSM, ONS, RIM, SDM, VTD

U1065 Loss of Serial Communications with the CCP/IPM

DTC U1001-U1254 Loss of XXX Communications

DIM, DDM, DIC, IPC, IRC, RIM

U1066 Loss of Serial Communications with the RIM

DTC U1001-U1254 Loss of XXX Communications

DDM, IPC, IPM

U1088 Loss of Serial Communications with the SDM

DTC U1001-U1254 Loss of XXX Communications

DIC, IPC

U1096 Loss of Serial Communications with the IPC

DTC U1001-U1254 Loss of XXX Communications

DIC, SDM

U1097 Loss of Serial Communications with the DIC

DTC U1001-U1254 Loss of XXX Communications

IPC, IPM, IRC

U1128 Loss of Serial Communications with the IRC

DTC U1001-U1254 Loss of XXX Communications

CDX, ONS

U1130 Loss of Serial Communications with the CDX

DTC U1001-U1254 Loss of XXX Communications

IRC

U1151 Loss on Serial Communications with the ONS

DTC U1001-U1254 Loss of XXX Communications

IRC

U1160 Loss of Serial Communications with the DDM

DTC U1001-U1254 Loss of XXX Communications

DIM, DIC, IPC, IRC, MSM, RIM

U1192 Loss of Serial Communications with the VTD

DTC U1001-U1254 Loss of XXX Communications

IPC, PCM

U1255 Generic Loss of Serial Communications

DTC U1000 and DTC U1255 Class 2 Communication Malfunction

EBCM, CDX, DIM, DDM, DIC, IPC, IPM, IRC, PCM, RIM, VTD

DTC U1300 Class 2 Data Link Low

EBCM, CDX, DIM, DIC, DDM, IPC, IPM, ONS, PCM, RIM, SDM

DTC U1301 Class 2 Data Link High

EBCM, CDX, DIM, DDM, DIC, IPC, IPM, IRC, ONS, PCM, RIM, SDM

DTC U1305 Class 2 Data Link Low or High

MSM, RFA